The University of California announced today (July 22) that it has offered an all-time record number of incoming students a spot on at least one of its nine undergraduate campuses for the 2019-20 academic year.

A simple method for using sand to make stormwater runoff safe for drinking helped UC Berkeley grad student Joseph Charbonnet snag first place on Thursday, May 3, at UC Grad Slam, a systemwide contest aimed at communicating research.

The contest challenges master’s and Ph.D. students to explain their research in three minutes, in a way that will engage and enlighten a general audience.

The winning concept, “mansand” — thusly named, Charbonnet quipped, not because it refuses to ask for directions — is sand treated with manganese oxide, which gives it superpowers to filter out toxins and polluting particles that rainwater picks up from the street and sidewalk.

The solution, now being implemented in field sites across the state, could be a huge boon to areas like Sun Valley, Calif., which, ironically, spends millions of dollars to import water from Northern California and other areas while its streets are routinely flooded.

Charbonnet’s innovation helped him wow a panel of judges to capture the $6,000 award and the systemwide trophy, known as the Slammy.

But the fifth year Ph.D. student was hardly the only one to make the ingenious look easy. Other covered topics included a simple, at-home cancer screening that could dramatically improve early detection and a way to quickly identify stroke that could increase access to lifesaving care.

Presenters also amazed and educated the audience with talks on what causes some people with a condition called synesthesia to see letters as colors, how to read the Earth’s climate history in layers of sediment, and how A-listers dressed in ancient Egypt.

“I didn’t realize it was going to be this dope,” said Jonathan Mancia, a UC Santa Cruz-bound senior at Gateway High School in San Francisco who joined 30 of his classmates at the event. “It was very cool to learn about all these things from ‘mansand’ to synesthesia and areas of research I didn’t even know existed.”

“It’s inspiring to see what students at UC are able to achieve,” said fellow Gateway senior Liam Brady, on his way to Dublin’s Trinity College. “I thought it was interesting how they could get to actual solutions, and then get those into place where they can be used to make some change.”

Now in its fourth year, Grad Slam aims to give emerging scientists and scholars the skills to make their work easily understandable to the public.

Thursday’s contest, co-sponsored by LinkedIn and held at the company’s San Francisco headquarters, featured the 10 first-place winners from similar contests that have taken place on each of UC’s campuses over the last three months.

The contest was emceed by UC President Janet Napolitano, who also quizzed students on what they did in their free time outside of the library and lab (answers included circus arts, cooking and ballroom dancing) and who they would invite to a dream dinner party.

Judging the students were a panel of leaders in education, government and media, as well as members of the audience and viewers at home, who helped chose an audience favorite.

To develop their winning pitches, students spent months practicing and getting input from those who often don’t weigh in on their research, from friends, family members and classmates to professional public speaking coaches.

For many, learning to connect with a wider audience often involves an approach counter to the specific, highly technical language they use to communicate with colleagues in their field.

“In graduate school, you want to establish expertise, and there’s a fear of being patronizing or talking down to your audience,” said Charbonnet. “You have to learn that it’s okay to cover the basics.”

For second-place winner Yiqi Cao, the trick was coming up with the right analogy to help people easily visualize and grasp her work.

Cao is looking to improve treatment for heart disease by building safer, longer-lasting stents, the tiny devices which doctors insert into blocked arteries to clear them and hold them open. When cells encounter the foreign object, they react by frantically producing proteins and scar tissue that leads to a high failure rate for the devices: Currently, one out of 10 patients needs a new stent within a year.

Cao also explained how changing the surface of the stent could force cells to move more slowly, minimizing their reaction.

Ultimately, she hit on the metaphor of the difference between how people are able to move across a smooth, paved roadway as compared to hopping over stones to cross a river. “I’ve changed the surface to be more like stepping stones,” she said.

“It is such an interesting and fun challenge to distill all of your work down to just a few of the most salient and important points. It’s a totally different mindset you need to take on.”

UCLA's Marissa Stevens discussed the social identity of Ancient Egyptians in her talk.Credit: Anastasiia Sapon

Marissa Stevens brought the dead back to life with her talk on how she has analyzed the scrolls buried with ancient Egyptians to reconstruct the identities and lives of the people who lived over 2,000 years ago.

In analyzing the objects buried with the dead, she learned about ways people used material objects to communicate their personality and social status in a manner that rings familiar to anyone who has watched interviews of stars on the red carpet, or flipped through the pages of People Magazine.

“At first, the culture of ancient Egyptians seemed so foreign,” she said. “But the more you look, the more you can see a little of yourself and of the modern world in who they were, and the way they lived.”